Protective closure for a pharmaceutical vial



FIG. 1 is a perspective view of a protective closure for a pharmaceutical vial, showing an open bottom end region and a side of my new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a side view thereof, it being understood that other side views are identical hereto;

FIG. 5 is a cross-sectional view as seen from a plane indicated by a line 5-5 in FIG. 4; and,

FIG. 6 is a perspective view of the protective closure installed on an upper portion of a pharmaceutical vial that is depicted by broken lines which are for illustrative purposes only and form no part of the claimed design. 

CLAIM I claim the ornamental design for a protective closure for a pharmaceutical vial, substantially as shown and described. 